Intra- and Intermolecular Charge Transfer in Aggregates of Tetrathiafulvalene-Triphenylmethyl Radical Derivatives in Solution

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abstract

An extensive investigation of aggregation phenomena occurring in solution for a family of electron donor–acceptor derivatives, based on polychlorotriphenylmethyl radicals (PTM) linked via a vinylene-bridge to tetrathiafulvalene (TTF) units, is presented. A large set of temperature and/or concentration dependent optical absorption and electron spin resonance (ESR) spectra in a solution of dyads bearing different number of electrons and/or with a hydrogenated PTM residue offer reliable information on the formation of homo dimers and mixed valence dimers. The results shed light on the reciprocal influence of intramolecular electron transfer (IET) within a dyad and the intermolecular charge transfer (CT) occurring in a dimer between the TTF residues and are rationalized based on a theoretical model that describes both interactions.

authors

J. Guasch, L. Grisanti, M. Souto, V. Lloveras, J. Vidal-Gancedo, I. Ratera, A. Painelli, C. Rovira, J. Veciana

our authors

foto Manuel Souto Salom

Manuel Souto Salom

Assistant Professor

Groups

1 - Inorganic Functional Nanomaterials and Organic-Inorganic Hybrids

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Publication Details

type
Journal Article
year
2013
journal
J. Am. Chem. Soc.
volume
135
digital object identifier
10.1021/ja400281b
https://pubs.acs.org/doi/10.1021/ja400281b

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